In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.

Ex Input:
Question: When did the person who voices Itchy begin acting professionally? Passage:The Itchy & Scratchy Show (often shortened as Itchy & Scratchy) is a fictional animated television series featured in the American animated television series The Simpsons. It appears as a part of The Krusty the Clown Show. Itself an animated cartoon, The Itchy & Scratchy Show depicts a blue mouse, Itchy (voiced by Dan Castellaneta), who repeatedly kills a black cat, Scratchy (voiced by Harry Shearer). The cartoon first appeared in The Tracey Ullman Show short "The Bart Simpson Show", which aired November 20, 1988. The cartoon's first appearance in The Simpsons was in the 1990 episode "There's No Disgrace Like Home". Typically presented as 15- to 60-second-long cartoons, the show is filled with gratuitous violence that almost invariably prompts uproarious laughter from Bart and Lisa. The Simpsons also occasionally features characters who are involved with the production of The Itchy & Scratchy Show, including Roger Meyers Jr. (voiced by Alex Rocco, and, later, Hank Azaria), who runs the studio and produces the show.
 Links: a. Reset button technique b. The Simpsons shorts c. Dan Castellaneta d. Story within a story

Ex Output:
c


Ex Input:
Question: How old was Anuradha Paudwal when she discovered Nikhil and Vinay  and introduced them to Gulshan Kumar? Passage:Nikhil and Vinay are both trained in classical music. Singer Anuradha Paudwal discovered the duo and recommended them to Gulshan Kumar, owner of T-Series music company, and director Chandra Barot, who signed them for the 1991 romantic film Pyar Bhara Dil. The song "Banke Kitab Teri" from the film became popular. The duo then went on to compose music for over 20 films. Their initial successes included Bewafa Sanam (1995), a film which was breakthrough for playback singer Sonu Nigam, English Babu Desi Mem (1996), Uff Yeh Mohabbat (1997) and Papa The Great (2000). The duo composed music for two of Sonu Nigam's successful music albums, Jaan (1999) and Yaad (2001). They went on to score music for Anubhav Sinha's box office success Tum Bin which included hit songs such as "Koi Fariyaad", "Chhoti Choti Raatein" and "Tumhare Siva". Some of their other successful ventures include Hum Tumhare Hain Sanam, Aapko Pehle Bhi Kahin Dekha Hai, Muskaan and Kuch Dil Ne Kaha. The duo have also been accused of plagiarism by Pakistani singer Faisal Latif.
 Links: a. Anuradha Paudwal b. Anuradha Paudwal c. Tum Bin d. Chandra Barot

Ex Output:
a


Ex Input:
Question: Where is the Celone Airfield? Passage:The squadron arrived in Italy in March 1944 and flew its first combat mission from Celone Airfield on 30 March against an airfield at Imotski, Yugoslavia. It engaged primarily in the strategic bombing campaign against Germany. It attacked targets like marshalling yards, oil refineries and aircraft factories in Austria, Czechoslovakia, Germany, Greece, Romania and Yugoslavia. The squadron was awarded a Distinguished Unit Citation (DUC) for a mission against oil refineries in Ploesti, Romania on 18 May 1944. Clouds that obscured the target resulted in Fifteenth Air Force recalling the mission, but the squadron and the rest of the 463d Group did not receive the recall message and was the only unit to continue on, causing major destruction to the target. Although crippled by intense fighter attacks, they also inflicted severe damage on the opposing air defenses. On 24 May 1945, the 463d Group led the 5th Bombardment Wing in an attack against a Daimler-Benz tank factory at Berlin, Germany. The squadron made a successful attack despite three separate attacks by enemy air defenses, including attacks by German jet fighters. This action earned the squadron its second DUC.
 Links: a. Presidential Unit Citation (United States) b. Celone/San Nicola d'Arpi Airfield c. Interceptor aircraft d. Celone/San Nicola d'Arpi Airfield

Ex Output:

b


